Vacuum fluid burner



septzz, 1925. r 1,554,788

H. R. C'ORWIN VACUUM FLUID BURNER Filed June. 24. 1924V ZSheets-Sheet l gin/vanto@ H@war'clR. Corwin,

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Sept. 22, 1925. l 1,554,788

H. R. CORWIN VACUUM mun BURNER Filed June 24 1924 2 Sheets-:sheetv 2 atto: 1 w11 Patentedy Sept. 22,1925.

uNrrEn STATESl HOWARD EUssELL ooRWIN, or NEWARK, NEW iJEnsEY.

VACUUM FLUID BURNER.

Application fnea June` 24, 1924. serial No. 722,091.

To au whom t may concern:

Be it known that I, HOWARD RUSSELL ConwlN, a citizen of the United States, residing at Newark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in `Jacuum Fluid Burners, of which the following is a specification. l

This invention relates to improvements in liquid burners for the consumption of inflammable liquids, (such as hydrocarbon fluids, alcohol and so forth) mixed with vair or gaseous substance, an object being to provlde a vacuum fluid burner, or a..

burner wherein the air and fluid mixture is discharged by the creation of a partial vacuum Within the burner.

Another object of the invention is the provision of a burner ofthis character in which the liquid is evenly distributed-over the entire inner wall of the burner so as to be thoroughly broken up and separated for proper mixture with air.

Another object of the invention .is the provision of 'a burner which includes an outer fuel discharge nozzle and an inner air supply nozzle, the nozzles beingcapable of relative adjustment to regulate the length of the flame and the degree of heat.

With the above and other objects in View, the invention further includes the following novel features and details of construction, to be hereinafter more fully described, illustrated in the accompanying drawings and pointed out in the appended claims.

Figure 1 is a top plan view of a burner constructed in accordance with the invention.

Figure 2 is an end view of the same. Figure 3 is a longitudinal sectional View, on the line 3-3 of Figure 1.

Figure iis a transverse section on, the

zle 11. vThis nozzle is held in place by means' of a lock' nut 12 and-clamped between` this nut and the' end of the shell 10 sure is supplied to the burner. The inner i end of this pipe has threadedly secured thereon a nozzle 20 whose outer end-is tapered upon opposite sides as indicated at 21 so as to provide a flattened discharge end. having one or more openings 22 therein. The openings 22 are in alignment with the openings 18 and are preferably smaller in size than theopenings 18.

The nozzle 20 has extending therefrom an annular enlarged portion or flange which is provided With ports or passages 23 extending therethrough.y Liquid supplied to the shell 10 will pass through these passages into the nozzle 11 so that a liquid supply chamber is provided in the burner.

The nozzle 20 is capable of 'adjustment longitudinally within theburner and relatively to the nozzle 11 and to permit this, the nozzle 2O has extending therefrom pins 22 which enter slots 23 providedin the nozzle 11, the said slots extending llongi tudinally of the said nozzle. The nozzle 20 may thus be moved axially of the burner While the openings 22 Will remain in with the openings 18.

The pipe 19 extends through the opposite end oftheshell 10 and the latter is provided with anut 24 having an opening for the passage of the pipe. This nut carries a threaded extension 25 which is engaged by a combined packing and binding nut 26. By loosening the nut 26, the pipe and consequently the burner 2O may be adjusted longitudinally and when the desired adjustment is obtained the nut 26 may be tightened to hold the nozzle 20 against accidental movement.

In operation, air under pressure entering the burner through the pipe 19 will pass outward through the openings 22 and will provide a partial vacuum around the nozzle 20, causing the fluid to form a circular a line spray with the oil evenly distributed entirely around the circumference of the die charge end of the said nozzle 20 so that this spray will be picked up by and mixed with the air and the mixture discharged through the openings 18 of the nozzle 11. The o1l emitted is projected from the openings 18 of the nozzle 11; into the ire box, is atomized and coned like a funnel about the air which passeslthrough the air supply pipe while the atmospheric air is forced -ahead and outside of the supply of oil thereby eilecting complete combustion.

By the adjustment of the nozzle 20 toward or away from the discharge end of the nozzle 11, the length of the iiame and the degree of heat may be regulated so as to adjust the burner for different tire boxes.

'By making the openings 22 smaller in size than the openings 18 a more perfect breaking up or ato'mization of the fluid is eilected. This not only provides a more perfect mixture but prevents the formation of carbon. In all fluid burners of this type the oil is forced ahead ot' the air, while in this device by'means ot the air coming through openings 22 draws the oil after it from in front of the nozzle v20 and discharges it through the openingslS oi' the nozzle 11.

The burner as a .whole is mounted upon a suitable swivel support 27 which will permit the vertical up and down movement of the same. i

It is obvious, that minor changes may be shell, a nozzle at the inner end of the pipe the last mentioned nozzle being locate within the shell nozzle, means whereby liquid may be supplied to the shell, an annular enlargement on the inner nozzle centering it relative to the outer. nozzle, said enlargement having passages therethrough and said shell nozzle having longitudinally disposedguide slots therein, pins extending fromthe inner nozzle into said slots, wherebythe inner nozzle may be longitudinally adjusted and means for holding the inner nozzle in adjusted position.

2. A burner comprising a shell adapted to .be supplied with a liquid, an outer nozzle at one end of the shell, an air conduit extending within the shell, an inner nozzle at the inner end of the conduit, said outer nozzle and inner nozzle being each provided with diametrically spaced openings with the openings of both nozzles disposed in axial alignment, means whereby'the nozzles may be relatively adjusted and means formaintaining axial alignment of the openings oi' the outer and inner nozzles.

3. A burner comprising a shell adapted to be supplied with a liquid, an outer nozzle at one end of the shell, an air conduit extending within the shell, an inner nozzle at the inner end ot' the conduit, said outei nozzle and inner nozzle being each provided with dia-metrically spaced openings with the openings of both nozzles disposed in axial alignment, means whereby the nozzles may be relatively adjusted and a slot and pin connection with the outer andinner nozzles to prevent relative rotary movement.

el. A burner comprising an outer shell. adapted to be supplied with a liquid, au outer nozzle at the end of the shell, an air supply pipe extending long ,ritudinally7 with-y in the shell, a nozzle at the inner end ot the pipe, the last'mentioned nozzle being` `spaced from and surrounded bythe outer nozzle defining a partial vacuum chamber, said outer and inner nozzles being` each provided \With diametricallv snnned openings with the openings of both nozzles disposed in axial alignment, means whereby the noz-'f zles may be relatively adjusted and vmeans for maintaining axial alignment of;` the openings ofthe outer and inner nozzles.

In testimony whereof I ailix my signature. f

HOWARD RUSSELL CORWIN 

